Plastic-Syringe Induced Silicone Contamination in Organic Photovoltaic Fabrication: Implications for Small-Volume Additives
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- 作者：John A. Carr ; Kanwar S. Nalwa ; Rakesh Mahadevapuram ; Yuqing Chen ; James Anderegg ; Sumit Chaudhary
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2012
- 出版时间：June 27, 2012
- 年：2012
- 卷：4
- 期：6
- 页码：2831-2835
- 全文大小：245K
- 年卷期：v.4,no.6(June 27, 2012)
- ISSN：1944-8252
文摘
Herein, the implications of silicone contamination found in solution-processed conjugated polymer solar cells are explored. Similar to a previous work based on molecular cells, we find this contamination as a result of the use of plastic syringes during fabrication. However, in contrast to the molecular case, we find that glass-syringe fabricated devices give superior performance than plastic-syringe fabricated devices in poly(3-hexylthiophene)-based cells. We find that the unintentional silicone addition alters the solution鈥檚 wettability, which translates to a thinner, less absorbent film on spinning. With many groups studying the effects of small-volume additives, this work should be closely considered as many of these additives may also directly alter the solutions鈥?wettability, or the amount of silicone dissolved off the plastic syringes, or both. Thereby, film thickness, which generally is not reported in detail, can vary significantly from device to device.